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13 March 2024 On-chip quantum sensing for cellular analysis with ultrabright 12C, N-controlled fluorescent nanodiamonds
Keisuke Oshimi, Minori Teramoto, Hirokazu Tsuji, Yoshiki Nishibayashi, Masazumi Fujiwara
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Proceedings Volume PC12912, Quantum Sensing, Imaging, and Precision Metrology II; PC129123N (2024) https://doi.org/10.1117/12.3001251
Event: SPIE Quantum West, 2024, San Francisco, California, United States
Abstract
We report on use of coverslip-based microwave antenna as an experimental platform for quantitatively characterizing NV spin properties of different types of fluorescent nanodiamonds (NDs). This coverslip antenna provides as-designed magnetic field of microwaves for spin excitation, thereby precisely determining NV spin relaxation times (T1, T2) of conventional type-Ib NDs and 12C-enriched NDs. Furthermore, we demonstrate measurements of the spin relaxation times inside live cells (HeLa and HepG2). We discuss potential applications of 12C enriched nanodiamonds for biologicals sensing with our coverslip antenna devices.
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Keisuke Oshimi, Minori Teramoto, Hirokazu Tsuji, Yoshiki Nishibayashi, and Masazumi Fujiwara "On-chip quantum sensing for cellular analysis with ultrabright 12C, N-controlled fluorescent nanodiamonds", Proc. SPIE PC12912, Quantum Sensing, Imaging, and Precision Metrology II, PC129123N (13 March 2024); https://doi.org/10.1117/12.3001251
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KEYWORDS
Neodymium
Nanodiamonds
Quantum sensing
Antennas
Microwave radiation
Quantum spin
Quantum detection
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